* {
  margin: 0;
  padding: 0;
}
body {
  background-color: #f3f3f3;
}
header {
  background-color: #fff;
  height: 50px;
  width: 100%;
  text-align: center;
  line-height: 50px;
  font-size: 15px;
}
.gwc {
  text-align: center;
  margin-top: 90px;
  img {
    width: 140px;
    height: 100px;
  }
  p {
    font-size: 14px;
    color: #333;
    padding-top: 20px;
  }
  span {
    margin-top: 30px;
    border-radius: 15px;
    display: inline-block;
    width: 100px;
    height: 32px;
    background-color: red;
    line-height: 8.5333vw;
    color: #fff;
  }
}
